Lifting machine with anti-falling self-locking structure

Abstract

The utility model discloses a lifting machine with an anti-falling self-locking structure, which comprises a base, lifting components are symmetrically arranged on the inner sides of stand columns symmetrically arranged on the two sides of the upper end of the base, anti-falling self-locking components are arranged on the lifting components, each anti-falling self-locking component comprises a lifting steel chain, one end of each lifting steel chain is connected with a lifting lug arranged at the upper end of the corresponding lifting component, and the other end of each lifting steel chain is connected with a lifting lug arranged at the lower end of the lifting component. The side, close to the stand column, of the connecting base is connected with a linear guide rail arranged in the stand column, and the outer side of a threaded rod arranged at the lower end of the connecting base is in threaded connection with a threaded sleeve. According to the lifting machine with the anti-falling self-locking structure, a bracket is lifted through a lifting steel chain, then a connecting base moves downwards on a linear guide rail, a threaded rod penetrates through a through hole formed in the middle of an extending base to be in threaded connection with a threaded sleeve 507, and therefore under the condition of power failure or power failure, a lifting assembly can be lifted up and down under the action of pulling force; therefore, the safety in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to lifts, in particular to a lift with an anti-falling self-locking structure. Background Art

[0002] A car lift is a device used to lift a car during car repair. When a car is driven to the lift station, it can be manually lifted to a certain height to facilitate car repair. The lift plays a very important role in car repair and maintenance. Nowadays, all repair shops are equipped with lifts. The lift is an essential equipment for car repair shops.

[0003] After searching, it is found that the typical lift in the prior art is a double-column lift with publication number CN202272686U. The double-column lift comprises: a pair of support columns arranged opposite to each other, the support columns having a slide in the longitudinal direction; the bottom ends of the support columns are connected to two lifting arms, there is an angle between the two lifting arms, and they move up and down in the slide; a load-bearing beam is detachably connected to the outer ends of the two lifting arms. The double-column lift provided by the utility model ensures that the effective contact area between the lift and the vehicle chassis is increased by connecting the load-bearing beam between the two lifting arms, so that the concentrated force pressure on the vehicle chassis is reduced, and the risk of deformation of the vehicle body is minimized to the greatest extent. At the same time, it can ensure that the center of gravity of the vehicle body on the lift is more stable, so that the safety guarantee during maintenance is improved.

[0004] In summary, the existing lifts have a single function. When there is a sudden power outage or equipment failure, dangerous accidents such as the sudden fall of the car are prone to occur, posing a serious threat to the personal safety of maintenance personnel. In view of the above problems, the existing equipment needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a lift with an anti-fall self-locking structure to solve the problem in the above-mentioned background technology that the existing lift has a single function and is prone to dangerous accidents such as sudden car falls when there is a sudden power outage or equipment failure, posing a serious threat to the personal safety of maintenance personnel.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a lift with an anti-fall self-locking structure, comprising a base,

[0007] Fixed casters are symmetrically arranged on both sides of the lower end of the base, and columns are symmetrically arranged on both sides of the upper end of the base, and lifting components are symmetrically arranged on the inner sides of the two columns. An anti-fall self-locking component is arranged on the lifting component, and the anti-fall self-locking component includes a lifting steel chain, one end of the lifting steel chain is connected to a lifting ear arranged on the upper end of the lifting component, and the other end of the lifting steel chain passes through the upper end of the guide roller and is connected to a connecting seat, and the guide roller is connected to the top of the corresponding column through a limit frame, the connecting seat is connected to a linear guide rail arranged inside the column close to the column, and a threaded rod is arranged at the lower end of the connecting seat, and a threaded sleeve is threadedly connected to the outer side of the threaded rod.

[0008] Preferably, the lifting assembly includes a ball screw, which is arranged in a mounting groove opened in the middle of the inner side of the column, and the top of the ball screw passes through the corresponding column and is connected to the output end of the driving motor. At the same time, a ball nut seat is arranged on the ball screw, and an extension seat arranged on one side of the ball nut seat passes through the corresponding slide groove opened on the column and extends to the outside of the column, and a bracket is arranged on the other side of the ball nut seat.

[0009] Preferably, the outer side of the extension seat is located below the connecting seat, and a through hole is opened in the middle of the extension seat, and the size of the through hole is the same as the size of the threaded rod.

[0010] Preferably, a snap-fit ​​groove is provided on the inner side of the lower end of the bracket, and an electric hydraulic cylinder is arranged below the snap-fit ​​groove, while the output end of the electric hydraulic cylinder is connected to a support seat, and the support seat is snap-fitted and connected to the snap-fit ​​groove.

[0011] Preferably, a vacuum pump is arranged on the outer side of the lower end of the bracket, and the output end of the vacuum pump passes through the bracket and is connected to the fixed suction cup.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the lift with anti-fall self-locking structure,

[0013] (1) In order to solve the problem that the existing lift has a single function and is prone to dangerous accidents such as sudden car falling when there is a sudden power outage or equipment failure, which poses a serious threat to the personal safety of maintenance personnel, the present application is provided with an anti-fall self-locking component, which lifts the bracket by lifting the steel chain, and then moves the connecting seat downward on the linear guide rail, so that the threaded rod passes through the through hole in the middle of the extension seat and is threadedly connected with the threaded sleeve 507, so that in the event of a power outage or power failure, the lifting component is not easy to fall under the action of the pulling force, thereby improving the safety of use;

[0014] (2) In order to solve the problems of safety and support stability in the existing lifts, the present application sets up a vacuum pump and a fixed suction cup for use in combination to facilitate the stable connection between the vehicle body and the support seat, and also sets up an electric hydraulic cylinder to facilitate the electric hydraulic cylinder to push the support seat upward to support the bottom of the support seat, thereby improving the stability of the support seat and the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4 For this utility model Figure 2 Enlarged structural diagram at B in the middle.

[0019] In the figure: 1. base; 2. fixed casters; 3. column; 4. lifting assembly; 401. ball screw; 402. drive motor; 403. ball nut seat; 404. extension seat; 405. bracket; 406. electric hydraulic cylinder; 407. vacuum pump; 408. fixed suction cup; 5. anti-fall self-locking assembly; 501. lifting steel chain; 502. guide roller; 503. limit frame; 504. connecting seat; 505. linear guide rail; 506. threaded rod; 507. threaded sleeve. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: a lift with an anti-fall self-locking structure, according to Figure 1 , Figure 2 and Figure 3As shown, fixed casters 2 are symmetrically arranged on both sides of the lower end of the base 1 to facilitate the movement of the device, and columns 3 are symmetrically arranged on both sides of the upper end of the base 1, and lifting components 4 are symmetrically arranged on the inner sides of the two columns 3. The lifting component 4 includes a ball screw 401, which is arranged in a mounting groove opened in the middle of the inner side of the column 3, and the top of the ball screw 401 passes through the corresponding column 3 and is connected to the output end of the drive motor 402. At the same time, a ball nut seat 403 is arranged on the ball screw 401, and an extension seat 404 arranged on one side of the ball nut seat 403 passes through the corresponding slide groove opened on the column 3 and It extends to the outside of the column 3, and the outside of the extension seat 404 is located below the connecting seat 504, and a through hole is opened in the middle of the extension seat 404, and the size of the through hole is the same as the size of the threaded rod 506, and a bracket 405 is arranged on the other side of the ball nut seat 403, and a snap-fit ​​groove is opened on the inner side of the lower end of the bracket 405, and an electric hydraulic cylinder 406 is arranged below the snap-fit ​​groove, and the output end of the electric hydraulic cylinder 406 is connected to the support seat, and the support seat is snap-fitted and connected with the snap-fit ​​groove, and a vacuum pump 407 is arranged on the outside of the lower end of the bracket 405, and the output end of the vacuum pump 407 passes through the bracket 405 and is connected with the fixed suction cup 408.

[0022] When in use, start the vacuum pump 407, and exhaust the air between the fixed suction cup 408 and the vehicle body through the vacuum pump 407, so that the fixed suction cup 408 is fixedly fitted to the vehicle body, and then the driving motor 402 drives the ball screw 401 to rotate, so that the ball screw 401 drives the ball nut seat 403, the extension seat 404 and the bracket 405 to move synchronously up and down, so as to lift the vehicle body for convenient maintenance, and then start the electric hydraulic cylinder 406, and push the support seat upward through the electric hydraulic cylinder 406, so as to engage with the engagement groove opened on the inner side of the lower end of the bracket 405, so as to support the bracket 405 and improve the stability of use.

[0023] according to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the lifting component 4 is provided with an anti-falling self-locking component 5, and the anti-falling self-locking component 5 includes a lifting steel chain 501, one end of the lifting steel chain 501 is connected to the lifting ear arranged on the upper end of the lifting component 4, and the other end of the lifting steel chain 501 passes through the upper end of the guide roller 502 and is connected to the connecting seat 504, and the guide roller 502 is connected to the top of the corresponding column 3 through the limit frame 503, and the connecting seat 504 is connected to the linear guide rail 505 arranged inside the column 3 on the side close to the column 3, and the lower end of the connecting seat 504 is provided with a threaded rod 506, and the outer side of the threaded rod 506 is threadedly connected to a threaded sleeve 507.

[0024] When in use, as the lifting assembly 4 moves upward, the lifting steel chain 501 moves upward synchronously, so that the connecting seat 504 moves downward on the linear guide rail 505 until the threaded rod 506 passes through the through hole opened in the middle of the extension seat 404 and extends to the bottom of the extension seat 404, and then the threaded sleeve 507 is rotated and sleeved on the outside of the threaded rod 506 until the top of the upper end of the threaded sleeve 507 is in contact with the lower end of the extension seat 404, so that in the event of a power outage or power failure, the lifting assembly 4 can be fixed in place to improve safety in use.

[0025] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lifting machine with an anti-falling self-locking structure, comprising a base (1), characterized in that: The base (1) is symmetrically provided with fixed casters (2) on both sides of the lower end, and the base (1) is symmetrically provided with columns (3) on both sides of the upper end, and a lifting assembly (4) is symmetrically provided on the inner sides of the two columns (3), and an anti-falling self-locking assembly (5) is provided on the lifting assembly (4), and the anti-falling self-locking assembly (5) includes a lifting steel chain (501), one end of the lifting steel chain (501) is connected to a lifting ear provided on the upper end of the lifting assembly (4), and the lifting steel chain (501) The other end passes through the upper end of the guide roller (502) and is connected to the connecting seat (504). At the same time, the guide roller (502) is connected to the top of the corresponding column (3) through the limit frame (503). The connecting seat (504) is connected to a linear guide rail (505) arranged inside the column (3) on the side close to the column (3). A threaded rod (506) is arranged at the lower end of the connecting seat (504). At the same time, a threaded sleeve (507) is threadedly connected to the outer side of the threaded rod (506).

2. The lifting machine with an anti-falling self-locking structure according to claim 1, characterized in that: The lifting assembly (4) comprises a ball screw (401), wherein the ball screw (401) is arranged in a mounting groove provided in the middle of the inner side of the column (3), and the top of the ball screw (401) passes through the corresponding column (3) and is connected to the output end of the driving motor (402), and a ball nut seat (403) is provided on the ball screw (401), and an extension seat (404) provided on one side of the ball nut seat (403) passes through the corresponding slide groove provided on the column (3) and extends to the outer side of the column (3), and a bracket seat (405) is provided on the other side of the ball nut seat (403).

3. The lifting machine with an anti-falling self-locking structure as claimed in claim 2, characterized in that: The outer side of the extension seat (404) is located below the connection seat (504), and a through hole is opened in the middle of the extension seat (404), and the size of the through hole is the same as the size of the threaded rod (506).

4. The lift with an anti-falling self-locking structure as claimed in claim 2, characterized in that: A snap-fitting groove is provided on the inner side of the lower end of the bracket (405), and an electric hydraulic cylinder (406) is arranged below the snap-fitting groove. Meanwhile, the output end of the electric hydraulic cylinder (406) is connected to a support seat, and the support seat is snap-fitted and connected to the snap-fitting groove.

5. The lifting machine with an anti-falling self-locking structure as claimed in claim 2, characterized in that: A vacuum pump (407) is disposed outside the lower end of the support (405), and an output end of the vacuum pump (407) passes through the support (405) and is connected to a fixed suction cup (408).

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